I have had ME installed on an old Athlon XP for
over 2 years (original install) and it's been
fine. The OS is kind of messy and clunky, but
it's fairly stable and certainly doesn't need to
be reinstalled every other Tuesday.
Windows is OK for what it is - a commercial
McProduct for the 'broader' masses. I don't go
to 'Taco Bell' expecting gourmet...as long as
it's cheap and does the job...Just keep Windows
relatively tidy, don't install millions of
unnecessary junk apps and it'll work "as
advertised".
-edit-
Plus Windows is great for ET and Q3...